ASE Brakes Practice Test Questions and Correct Answers
A vehicle with a Hydro boost brake system has reduced braking performance. Which of the following is causing this poor performance?
- Low manifold vacuum.
- A faulty vacuum check valve.
- A clogged inlet valve.
- A faulty power steering pump. - CORRECT ANSWER D. faulty power
steering pump
A vehicle with a vacuum booster has a hard brake pedal. Which of the following is LEAST likely to cause this condition?
- The master cylinder.
- The vacuum check valve.
- A clogged check valve hose.
- Low manifold vacuum. - CORRECT ANSWER A. The master cylinder
A vehicle pulls to the left only when the brakes are applied. This condition is MOST
likely caused by:
- A seized left front caliper.
- A restriction in the left front brake line.
- Leaking master cylinder cup seals.
- A seized right front caliper. - CORRECT ANSWER D. seized right front
caliper
A technician has inspected the brakes of a front disc rear drum brake system and found that the brake shoes are worn and require replacement. All of the following statements
are correct about brake shoe replacement EXCEPT:
- The primary shoe faces the front of the vehicle.
- The secondary shoe has a shorter brake shoe lining.
- The secondary shoe faces the rear of the vehicle.
- Shoe lining can be riveted or glued to the shoe. - CORRECT ANSWER B.
The secondary shoe has a shorter brake shoe lining 1 / 2
Technician A says ABS control units are programmed to ignore speed sensor input variations below a certain threshold. Technician B says a one-channel ABS brake system controls hydraulic pressure to the rear brake units. Who is correct?
- Technician A
- Technician B
- Both A and B
- Neither A or B - CORRECT ANSWER C. Both A and B
After replacing all four rotors and pads on a disc brake system, a pulsation is still felt in the steering wheel when braking. Which of the following is MOST likely causing this vibration?
- A rusty hub flange.
- Sticking slide pins.
- Thickness variation.
- Lateral run out. - CORRECT ANSWER A. A rusty hub flange
A vehicle has a soft and spongy brake pedal at all times. Which of the following is causing this spongy pedal?
- Air in the brake lines.
- Low manifold vacuum.
- The brake booster.
- Master cylinder cup seals. - CORRECT ANSWER A. Air in the brake lines
A vehicle with a front disc rear drum brake system nosedives while lightly braking.Which of the following is causing this condition?
- Worn brake pads.
- Over-adjusted brakes.
- The proportioning valve.
- The metering valve. - CORRECT ANSWER D. The metering valve
. A vehicle has a grinding noise that gets louder and changes in pitch while turning left.Which of the following is causing this noise?
- A cupped left front tire.
- A faulty right front wheel bearing.
- A grabbing left front brake.
- Worn left front strut. - CORRECT ANSWER B. A faulty right front wheel
bearing
A customer states that the TCS traction control system's warning light flashes while driving in snow and other poor weather conditions. Technician A says it is normal for the warning light to flash when the system is active, or the vehicle is losing traction.Technician B says these systems require a wheel speed sensor at each wheel. Who is correct?
- Technician A
- Technician B
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